Adamswiller is located some 20 km north by north-west of Phalsbourg and 20 km south-east of Sarralbe. The D9 road from Mackwiller passes south through the western part of the commune on the way to Durstel in the south. The D182 runs off the D9 in the commune to Rexingen in the south-west. There is also the D239 road from the village going north-east to join the D919 road just outside the commune. The commune is mostly farmland with a little forest in the east.[2]

The commune is renowned for its pink sandstone from the north-east of the commune which has been approved for the restoration of historical monuments.

The commune was formerly part of the County of La Petite-Pierre. Between Adamswiller and Mackwiller there have been found ancient tombs which have been given the name Totdenberg due to the heights on which they were found (The hill of the Dead).

In 2009 the commune had 387 inhabitants. The evolution of the number of inhabitants is known through the population censuses conducted in the commune since 1793. From the 21st century, a census of municipalities with fewer than 10,000 inhabitants is held every five years, unlike larger towns that have a sample survey every year.[Note 1]

^At the beginning of the 21st century, the methods of identification have been modified by law No. 2002-276 of 27 February 2002 [1]Archived 2016-03-06 at the Wayback Machine., the so-called "law of local democracy" and in particular Title V "census operations" which allow, after a transitional period running from 2004 to 2008, the annual publication of the legal population of the different French administrative districts. For municipalities with a population greater than 10,000 inhabitants, a sample survey is conducted annually, the entire territory of these municipalities is taken into account at the end of the period of five years. The first "legal population" after 1999 under this new law came into force on 1 January 2009 and was based on the census of 2006.